Compare 209809 vs 210139
| Property | 209809 | 210139 |
|---|---|---|
| Type | prime | prime |
| Unique factors | 1 | 1 |
| Total factors | 1 | 1 |
| Prime factorization | 2098091 | 2101391 |
| Prime factorization | 209809 | 210139 |
| Divisors count | 2 | 2 |
| Divisors | 1, 209809 | 1, 210139 |
| Number of properties | 5 | 5 |
| Cousin primes (1st member) | 2223rd | 2229th |
| Happy primes | 2856th | |
| Harmonic primes | 7048th | |
| Isolated primes | 14288th | 14315th |
| Long primes | 7042nd | |
| Primes | 18789th | 18820th |
| Pythagorean primes | 9383rd | |
| Roman numberals | ||
| Base 2 | 1100110011100100012 | 1100110100110110112 |
| Base 3 | 1011222102013 | 1012000202213 |
| Base 4 | 3030321014 | 3031031234 |
| Base 5 | 232032145 | 232110245 |
| Base 6 | 42552016 | 43005116 |
| Base 7 | 15324557 | 15334367 |
| Base 8 | 6316218 | 6323338 |
| Base 9 | 3487219 | 3502279 |
| Base 10 | 20980910 | 21013910 |
| Base 11 | 1336a611 | 13397611 |
| Base 12 | a150112 | a173712 |
| Base 13 | 7466213 | 7485713 |
| Base 14 | 5666514 | 5681d14 |
| Base 15 | 4227415 | 423e415 |
| Base 16 | 3339116 | 334db16 |